MERCURY Doug's Headers Headers Exhaust - Free Shipping on Orders Over $109 at Summit Racing

Doug's Headers D623

Headers, Long Tube, Steel, Silver Ceramic Coated, SAP Port, Ford, Mercury, Small Block Windsor, Pair

Part Number: DOU-D623

3.91 out of 5 stars ( 11 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers Stainless Steel Headers D623-SS

Headers, Long Tube, Stainless Steel, Natural, 3-Bolt Flange Small Block, Ford. Pair

Part Number: DOU-D623-SS

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers D665

Headers, Shorty, Steel, Ceramic Coated, Ford, Mercury, Automatic Transmission, Pair

Part Number: DOU-D665

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers D660YA

Headers, Tri-Y, Steel, Ceramic Coated, Ford, 260, 289, 302, C-4 Automatic, Pair

Part Number: DOU-D660YA

4.4 out of 5 stars ( 10 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers D670A4

Headers, Long Tube, Metallic Ceramic Coated, Ford, Mercury, Cleveland, Pair

Part Number: DOU-D670A4

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers Stainless Steel Headers D669Y-SS

Headers, Mid-Length, Stainless Steel, Natural, Ford, Mercury, 351W, Pair

Part Number: DOU-D669Y-SS

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers D623-B

Headers, Long Tube, Steel, Painted, 3.0 in. Collector, SAP Port, Ford, Mercury, Small Block Windsor, Pair

Part Number: DOU-D623-B

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers D670S4

Headers, Long Tube, Steel, Ceramic Coated, Ford, Mercury, 351C, 4V, Pair

Part Number: DOU-D670S4

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers D626

Headers, Long Tube, Steel, Silver Ceramic Coated, Ford, 390-427 FE, Pair

Part Number: DOU-D626

3.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers D625-B

Headers, Long Tube, Steel, Hi-Temp Black Coating, 3.0 in. Collector, D-port, Ford, 390, 427, 428, Pair

Part Number: DOU-D625-B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers Stainless Steel Headers D660YS-SS

Headers, Tri-Y, Stainless Steel, Natural, Coated, Ford, 260, 289, 302, Manual, Pair

Part Number: DOU-D660YS-SS

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers Stainless Steel Headers D626-SS

Headers, Long Tube, Stainless Steel, Natural, Ford, 390-427 FE, Pair

Part Number: DOU-D626-SS

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers D660YA-B

Headers, Tri-Y, Steel, Painted, 2.5 in. Collector, SAP Port, Ford, Mercury, 260, 289, Pair

Part Number: DOU-D660YA-B

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

Doug's Headers D625S

Headers, Long Tube, Steel, Ceramic Coated, 1.75 in Primary, 3 in Collector, Ford, Mercury, FE, V8, Manual, Pair

Part Number: DOU-D625S

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers D669Y

Headers, Mid-Length, Steel, Ceramic Coated, Ford, Mercury, 351W, Pair

Part Number: DOU-D669Y

4.6 out of 5 stars ( 10 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers Stainless Steel Headers D690YA-SS

Headers, Tri-Y, Stainless Steel, Natural, Ford, 260, 289, 302, Automatic, Pair

Part Number: DOU-D690YA-SS

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers D625

Headers, Long Tube, Steel, Ceramic Coated, 1.75 in Primary, 3 in Collector, Ford, Mercury, FE, V8, Automatic, Pair

Part Number: DOU-D625

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers D6652

Headers, Long Tube, Steel, Silver Ceramic Coated, Ford, Mercury, 5.0L Coyote Swap, Pair

Part Number: DOU-D6652

2.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers D662Y

Headers, Tri-Y, Steel, Ceramic Coated, Ford, Mercury, 221, 260, 289, Pair

Part Number: DOU-D662Y

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

Doug's Headers Stainless Steel Headers D660YA-SS

Headers, Tri-Y, Stainless Steel, Natural, Ford, 260, 289, 302, C-4 Automatic, Pair

Part Number: DOU-D660YA-SS

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 29, 2025 if ordered today

Doug's Headers D6652-B

Headers, Long Tube, Steel, Natural, Ford, Mercury, 5.0L Coyote Swap, Pair

Part Number: DOU-D6652-B

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Doug's Headers D662Y-B

Headers, Tri-Y, Steel, Painted, Ford, Mercury, 221, 260, 289, Pair

Part Number: DOU-D662Y-B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

Doug's Headers D669Y-1

Headers, Tri-Y, Steel, Silver Ceramic Coated, 1 3/4 - 2 in. Primary Tube O.D., 3.00 in. Collector Diameter, SAP Port, Ford, Mercury, 351W, Pair

Part Number: DOU-D669Y-1

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

Doug's Headers D670S4-B

Headers, Long Tube, Steel, Painted, Ford, Mercury, 351C, Pair

Part Number: DOU-D670S4-B

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

Doug's Headers D669Y-B

Headers, Mid Length, Steel, Painted, Ford, Mercury, 351W, Pair

Part Number: DOU-D669Y-B

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today